Contractor

Contractor Calculators

Price and review jobs with fewer hidden assumptions. Move from area and material needs to estimates, actual job cost, profit margin, and markup.

Choose by decision

Start with the question, not the metric

Keep the inputs and reporting period consistent, then validate important decisions against your source data.

Select the relevant calculator below, record your assumptions, and compare scenarios before acting.

Select the relevant calculator below, record your assumptions, and compare scenarios before acting.

Select the relevant calculator below, record your assumptions, and compare scenarios before acting.

Free browser tools

No signup. Inputs are processed locally in your browser.

Build a labor, material, overhead, and profit estimate.

Estimate job profit and margin.

Add a waste allowance to material quantities.

Calculate rectangular project area.

Estimate paint quantity from area and coverage.

Common questions

What should a contractor estimate include?

Include labor, payroll burden, materials, subcontractors, equipment, permits, travel, disposal, overhead, profit, and project-specific risk.

Is markup the same as margin?

No. Markup divides profit by cost; margin divides profit by revenue.

Should estimates be checked against completed jobs?

Yes. Comparing estimates with actual labor, materials, overhead, and change orders improves future pricing.